layui.define(["jquery"], function(exports) {
	var jQuery = layui.jquery;
	(function($) {
		/*!
		 * Viewer.js v1.3.3
		 * https://fengyuanchen.github.io/viewerjs
		 *
		 * Copyright 2015-present Chen Fengyuan
		 * Released under the MIT license
		 *
		 * Date: 2019-04-06T14:06:28.301Z
		 */

		(function(global, factory) {
			typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
				typeof define === 'function' && define.amd ? define(factory) :
				(global = global || self, global.Viewer = factory());
		}(this, function() {
			'use strict';

			function _typeof(obj) {
				if(typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
					_typeof = function(obj) {
						return typeof obj;
					};
				} else {
					_typeof = function(obj) {
						return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
					};
				}

				return _typeof(obj);
			}

			function _classCallCheck(instance, Constructor) {
				if(!(instance instanceof Constructor)) {
					throw new TypeError("Cannot call a class as a function");
				}
			}

			function _defineProperties(target, props) {
				for(var i = 0; i < props.length; i++) {
					var descriptor = props[i];
					descriptor.enumerable = descriptor.enumerable || false;
					descriptor.configurable = true;
					if("value" in descriptor) descriptor.writable = true;
					Object.defineProperty(target, descriptor.key, descriptor);
				}
			}

			function _createClass(Constructor, protoProps, staticProps) {
				if(protoProps) _defineProperties(Constructor.prototype, protoProps);
				if(staticProps) _defineProperties(Constructor, staticProps);
				return Constructor;
			}

			var DEFAULTS = {
				/**
				 * Enable a modal backdrop, specify `static` for a backdrop
				 * which doesn't close the modal on click.
				 * @type {boolean}
				 */
				backdrop: true,

				/**
				 * Show the button on the top-right of the viewer.
				 * @type {boolean}
				 */
				button: true,

				/**
				 * Show the navbar.
				 * @type {boolean | number}
				 */
				navbar: true,

				/**
				 * Specify the visibility and the content of the title.
				 * @type {boolean | number | Function | Array}
				 */
				title: true,

				/**
				 * Show the toolbar.
				 * @type {boolean | number | Object}
				 */
				toolbar: true,

				/**
				 * Custom class name(s) to add to the viewer's root element.
				 * @type {string}
				 */
				className: '',

				/**
				 * Define where to put the viewer in modal mode.
				 * @type {string | Element}
				 */
				container: 'body',

				/**
				 * Filter the images for viewing. Return true if the image is viewable.
				 * @type {Function}
				 */
				filter: null,

				/**
				 * Enable to request fullscreen when play.
				 * @type {boolean}
				 */
				fullscreen: true,

				/**
				 * Define the initial index of image for viewing.
				 * @type {number}
				 */
				initialViewIndex: 0,

				/**
				 * Enable inline mode.
				 * @type {boolean}
				 */
				inline: false,

				/**
				 * The amount of time to delay between automatically cycling an image when playing.
				 * @type {number}
				 */
				interval: 5000,

				/**
				 * Enable keyboard support.
				 * @type {boolean}
				 */
				keyboard: true,

				/**
				 * Indicate if show a loading spinner when load image or not.
				 * @type {boolean}
				 */
				loading: true,

				/**
				 * Indicate if enable loop viewing or not.
				 * @type {boolean}
				 */
				loop: true,

				/**
				 * Min width of the viewer in inline mode.
				 * @type {number}
				 */
				minWidth: 200,

				/**
				 * Min height of the viewer in inline mode.
				 * @type {number}
				 */
				minHeight: 100,

				/**
				 * Enable to move the image.
				 * @type {boolean}
				 */
				movable: true,

				/**
				 * Enable to zoom the image.
				 * @type {boolean}
				 */
				zoomable: true,

				/**
				 * Enable to rotate the image.
				 * @type {boolean}
				 */
				rotatable: true,

				/**
				 * Enable to scale the image.
				 * @type {boolean}
				 */
				scalable: true,

				/**
				 * Indicate if toggle the image size between its natural size
				 * and initial size when double click on the image or not.
				 * @type {boolean}
				 */
				toggleOnDblclick: true,

				/**
				 * Show the tooltip with image ratio (percentage) when zoom in or zoom out.
				 * @type {boolean}
				 */
				tooltip: true,

				/**
				 * Enable CSS3 Transition for some special elements.
				 * @type {boolean}
				 */
				transition: true,

				/**
				 * Define the CSS `z-index` value of viewer in modal mode.
				 * @type {number}
				 */
				zIndex: 2015,

				/**
				 * Define the CSS `z-index` value of viewer in inline mode.
				 * @type {number}
				 */
				zIndexInline: 0,

				/**
				 * Define the ratio when zoom the image by wheeling mouse.
				 * @type {number}
				 */
				zoomRatio: 0.1,

				/**
				 * Define the min ratio of the image when zoom out.
				 * @type {number}
				 */
				minZoomRatio: 0.01,

				/**
				 * Define the max ratio of the image when zoom in.
				 * @type {number}
				 */
				maxZoomRatio: 100,

				/**
				 * Define where to get the original image URL for viewing.
				 * @type {string | Function}
				 */
				url: 'src',

				/**
				 * Event shortcuts.
				 * @type {Function}
				 */
				ready: null,
				show: null,
				shown: null,
				hide: null,
				hidden: null,
				view: null,
				viewed: null,
				zoom: null,
				zoomed: null
			};

			var TEMPLATE = '<div class="viewer-container" touch-action="none">' + '<div class="viewer-canvas"></div>' + '<div class="viewer-footer">' + '<div class="viewer-title"></div>' + '<div class="viewer-toolbar"></div>' + '<div class="viewer-navbar">' + '<ul class="viewer-list"></ul>' + '</div>' + '</div>' + '<div class="viewer-tooltip"></div>' + '<div role="button" class="viewer-button" data-viewer-action="mix"></div>' + '<div class="viewer-player"></div>' + '</div>';

			var IS_BROWSER = typeof window !== 'undefined';
			var WINDOW = IS_BROWSER ? window : {};
			var IS_TOUCH_DEVICE = IS_BROWSER ? 'ontouchstart' in WINDOW.document.documentElement : false;
			var HAS_POINTER_EVENT = IS_BROWSER ? 'PointerEvent' in WINDOW : false;
			var NAMESPACE = 'viewer'; // Actions

			var ACTION_MOVE = 'move';
			var ACTION_SWITCH = 'switch';
			var ACTION_ZOOM = 'zoom'; // Classes

			var CLASS_ACTIVE = "".concat(NAMESPACE, "-active");
			var CLASS_CLOSE = "".concat(NAMESPACE, "-close");
			var CLASS_FADE = "".concat(NAMESPACE, "-fade");
			var CLASS_FIXED = "".concat(NAMESPACE, "-fixed");
			var CLASS_FULLSCREEN = "".concat(NAMESPACE, "-fullscreen");
			var CLASS_FULLSCREEN_EXIT = "".concat(NAMESPACE, "-fullscreen-exit");
			var CLASS_HIDE = "".concat(NAMESPACE, "-hide");
			var CLASS_HIDE_MD_DOWN = "".concat(NAMESPACE, "-hide-md-down");
			var CLASS_HIDE_SM_DOWN = "".concat(NAMESPACE, "-hide-sm-down");
			var CLASS_HIDE_XS_DOWN = "".concat(NAMESPACE, "-hide-xs-down");
			var CLASS_IN = "".concat(NAMESPACE, "-in");
			var CLASS_INVISIBLE = "".concat(NAMESPACE, "-invisible");
			var CLASS_LOADING = "".concat(NAMESPACE, "-loading");
			var CLASS_MOVE = "".concat(NAMESPACE, "-move");
			var CLASS_OPEN = "".concat(NAMESPACE, "-open");
			var CLASS_SHOW = "".concat(NAMESPACE, "-show");
			var CLASS_TRANSITION = "".concat(NAMESPACE, "-transition"); // Events

			var EVENT_CLICK = 'click';
			var EVENT_DBLCLICK = 'dblclick';
			var EVENT_DRAG_START = 'dragstart';
			var EVENT_HIDDEN = 'hidden';
			var EVENT_HIDE = 'hide';
			var EVENT_KEY_DOWN = 'keydown';
			var EVENT_LOAD = 'load';
			var EVENT_TOUCH_START = IS_TOUCH_DEVICE ? 'touchstart' : 'mousedown';
			var EVENT_TOUCH_MOVE = IS_TOUCH_DEVICE ? 'touchmove' : 'mousemove';
			var EVENT_TOUCH_END = IS_TOUCH_DEVICE ? 'touchend touchcancel' : 'mouseup';
			var EVENT_POINTER_DOWN = HAS_POINTER_EVENT ? 'pointerdown' : EVENT_TOUCH_START;
			var EVENT_POINTER_MOVE = HAS_POINTER_EVENT ? 'pointermove' : EVENT_TOUCH_MOVE;
			var EVENT_POINTER_UP = HAS_POINTER_EVENT ? 'pointerup pointercancel' : EVENT_TOUCH_END;
			var EVENT_READY = 'ready';
			var EVENT_RESIZE = 'resize';
			var EVENT_SHOW = 'show';
			var EVENT_SHOWN = 'shown';
			var EVENT_TRANSITION_END = 'transitionend';
			var EVENT_VIEW = 'view';
			var EVENT_VIEWED = 'viewed';
			var EVENT_WHEEL = 'wheel';
			var EVENT_ZOOM = 'zoom';
			var EVENT_ZOOMED = 'zoomed'; // Data keys

			var DATA_ACTION = "".concat(NAMESPACE, "Action"); // RegExps

			var REGEXP_SPACES = /\s\s*/; // Misc

			var BUTTONS = ['zoom-in', 'zoom-out', 'one-to-one', 'reset', 'prev', 'play', 'next', 'rotate-left', 'rotate-right', 'flip-horizontal', 'flip-vertical'];

			/**
			 * Check if the given value is a string.
			 * @param {*} value - The value to check.
			 * @returns {boolean} Returns `true` if the given value is a string, else `false`.
			 */

			function isString(value) {
				return typeof value === 'string';
			}
			/**
			 * Check if the given value is not a number.
			 */

			var isNaN = Number.isNaN || WINDOW.isNaN;
			/**
			 * Check if the given value is a number.
			 * @param {*} value - The value to check.
			 * @returns {boolean} Returns `true` if the given value is a number, else `false`.
			 */

			function isNumber(value) {
				return typeof value === 'number' && !isNaN(value);
			}
			/**
			 * Check if the given value is undefined.
			 * @param {*} value - The value to check.
			 * @returns {boolean} Returns `true` if the given value is undefined, else `false`.
			 */

			function isUndefined(value) {
				return typeof value === 'undefined';
			}
			/**
			 * Check if the given value is an object.
			 * @param {*} value - The value to check.
			 * @returns {boolean} Returns `true` if the given value is an object, else `false`.
			 */

			function isObject(value) {
				return _typeof(value) === 'object' && value !== null;
			}
			var hasOwnProperty = Object.prototype.hasOwnProperty;
			/**
			 * Check if the given value is a plain object.
			 * @param {*} value - The value to check.
			 * @returns {boolean} Returns `true` if the given value is a plain object, else `false`.
			 */

			function isPlainObject(value) {
				if(!isObject(value)) {
					return false;
				}

				try {
					var _constructor = value.constructor;
					var prototype = _constructor.prototype;
					return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
				} catch(error) {
					return false;
				}
			}
			/**
			 * Check if the given value is a function.
			 * @param {*} value - The value to check.
			 * @returns {boolean} Returns `true` if the given value is a function, else `false`.
			 */

			function isFunction(value) {
				return typeof value === 'function';
			}
			/**
			 * Iterate the given data.
			 * @param {*} data - The data to iterate.
			 * @param {Function} callback - The process function for each element.
			 * @returns {*} The original data.
			 */

			function forEach(data, callback) {
				if(data && isFunction(callback)) {
					if(Array.isArray(data) || isNumber(data.length)
						/* array-like */
					) {
						var length = data.length;
						var i;

						for(i = 0; i < length; i += 1) {
							if(callback.call(data, data[i], i, data) === false) {
								break;
							}
						}
					} else if(isObject(data)) {
						Object.keys(data).forEach(function(key) {
							callback.call(data, data[key], key, data);
						});
					}
				}

				return data;
			}
			/**
			 * Extend the given object.
			 * @param {*} obj - The object to be extended.
			 * @param {*} args - The rest objects which will be merged to the first object.
			 * @returns {Object} The extended object.
			 */

			var assign = Object.assign || function assign(obj) {
				for(var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
					args[_key - 1] = arguments[_key];
				}

				if(isObject(obj) && args.length > 0) {
					args.forEach(function(arg) {
						if(isObject(arg)) {
							Object.keys(arg).forEach(function(key) {
								obj[key] = arg[key];
							});
						}
					});
				}

				return obj;
			};
			var REGEXP_SUFFIX = /^(?:width|height|left|top|marginLeft|marginTop)$/;
			/**
			 * Apply styles to the given element.
			 * @param {Element} element - The target element.
			 * @param {Object} styles - The styles for applying.
			 */

			function setStyle(element, styles) {
				var style = element.style;
				forEach(styles, function(value, property) {
					if(REGEXP_SUFFIX.test(property) && isNumber(value)) {
						value += 'px';
					}

					style[property] = value;
				});
			}
			/**
			 * Check if the given element has a special class.
			 * @param {Element} element - The element to check.
			 * @param {string} value - The class to search.
			 * @returns {boolean} Returns `true` if the special class was found.
			 */

			function hasClass(element, value) {
				return element.classList ? element.classList.contains(value) : element.className.indexOf(value) > -1;
			}
			/**
			 * Add classes to the given element.
			 * @param {Element} element - The target element.
			 * @param {string} value - The classes to be added.
			 */

			function addClass(element, value) {
				if(!value) {
					return;
				}

				if(isNumber(element.length)) {
					forEach(element, function(elem) {
						addClass(elem, value);
					});
					return;
				}

				if(element.classList) {
					element.classList.add(value);
					return;
				}

				var className = element.className.trim();

				if(!className) {
					element.className = value;
				} else if(className.indexOf(value) < 0) {
					element.className = "".concat(className, " ").concat(value);
				}
			}
			/**
			 * Remove classes from the given element.
			 * @param {Element} element - The target element.
			 * @param {string} value - The classes to be removed.
			 */

			function removeClass(element, value) {
				if(!value) {
					return;
				}

				if(isNumber(element.length)) {
					forEach(element, function(elem) {
						removeClass(elem, value);
					});
					return;
				}

				if(element.classList) {
					element.classList.remove(value);
					return;
				}

				if(element.className.indexOf(value) >= 0) {
					element.className = element.className.replace(value, '');
				}
			}
			/**
			 * Add or remove classes from the given element.
			 * @param {Element} element - The target element.
			 * @param {string} value - The classes to be toggled.
			 * @param {boolean} added - Add only.
			 */

			function toggleClass(element, value, added) {
				if(!value) {
					return;
				}

				if(isNumber(element.length)) {
					forEach(element, function(elem) {
						toggleClass(elem, value, added);
					});
					return;
				} // IE10-11 doesn't support the second parameter of `classList.toggle`

				if(added) {
					addClass(element, value);
				} else {
					removeClass(element, value);
				}
			}
			var REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;
			/**
			 * Transform the given string from camelCase to kebab-case
			 * @param {string} value - The value to transform.
			 * @returns {string} The transformed value.
			 */

			function hyphenate(value) {
				return value.replace(REGEXP_HYPHENATE, '$1-$2').toLowerCase();
			}
			/**
			 * Get data from the given element.
			 * @param {Element} element - The target element.
			 * @param {string} name - The data key to get.
			 * @returns {string} The data value.
			 */

			function getData(element, name) {
				if(isObject(element[name])) {
					return element[name];
				}

				if(element.dataset) {
					return element.dataset[name];
				}

				return element.getAttribute("data-".concat(hyphenate(name)));
			}
			/**
			 * Set data to the given element.
			 * @param {Element} element - The target element.
			 * @param {string} name - The data key to set.
			 * @param {string} data - The data value.
			 */

			function setData(element, name, data) {
				if(isObject(data)) {
					element[name] = data;
				} else if(element.dataset) {
					element.dataset[name] = data;
				} else {
					element.setAttribute("data-".concat(hyphenate(name)), data);
				}
			}

			var onceSupported = function() {
				var supported = false;

				if(IS_BROWSER) {
					var once = false;

					var listener = function listener() {};

					var options = Object.defineProperty({}, 'once', {
						get: function get() {
							supported = true;
							return once;
						},

						/**
						 * This setter can fix a `TypeError` in strict mode
						 * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Getter_only}
						 * @param {boolean} value - The value to set
						 */
						set: function set(value) {
							once = value;
						}
					});
					WINDOW.addEventListener('test', listener, options);
					WINDOW.removeEventListener('test', listener, options);
				}

				return supported;
			}();
			/**
			 * Remove event listener from the target element.
			 * @param {Element} element - The event target.
			 * @param {string} type - The event type(s).
			 * @param {Function} listener - The event listener.
			 * @param {Object} options - The event options.
			 */

			function removeListener(element, type, listener) {
				var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
				var handler = listener;
				type.trim().split(REGEXP_SPACES).forEach(function(event) {
					if(!onceSupported) {
						var listeners = element.listeners;

						if(listeners && listeners[event] && listeners[event][listener]) {
							handler = listeners[event][listener];
							delete listeners[event][listener];

							if(Object.keys(listeners[event]).length === 0) {
								delete listeners[event];
							}

							if(Object.keys(listeners).length === 0) {
								delete element.listeners;
							}
						}
					}

					element.removeEventListener(event, handler, options);
				});
			}
			/**
			 * Add event listener to the target element.
			 * @param {Element} element - The event target.
			 * @param {string} type - The event type(s).
			 * @param {Function} listener - The event listener.
			 * @param {Object} options - The event options.
			 */

			function addListener(element, type, listener) {
				var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
				var _handler = listener;
				type.trim().split(REGEXP_SPACES).forEach(function(event) {
					if(options.once && !onceSupported) {
						var _element$listeners = element.listeners,
							listeners = _element$listeners === void 0 ? {} : _element$listeners;

						_handler = function handler() {
							delete listeners[event][listener];
							element.removeEventListener(event, _handler, options);

							for(var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
								args[_key2] = arguments[_key2];
							}

							listener.apply(element, args);
						};

						if(!listeners[event]) {
							listeners[event] = {};
						}

						if(listeners[event][listener]) {
							element.removeEventListener(event, listeners[event][listener], options);
						}

						listeners[event][listener] = _handler;
						element.listeners = listeners;
					}

					element.addEventListener(event, _handler, options);
				});
			}
			/**
			 * Dispatch event on the target element.
			 * @param {Element} element - The event target.
			 * @param {string} type - The event type(s).
			 * @param {Object} data - The additional event data.
			 * @returns {boolean} Indicate if the event is default prevented or not.
			 */

			function dispatchEvent(element, type, data) {
				var event; // Event and CustomEvent on IE9-11 are global objects, not constructors

				if(isFunction(Event) && isFunction(CustomEvent)) {
					event = new CustomEvent(type, {
						detail: data,
						bubbles: true,
						cancelable: true
					});
				} else {
					event = document.createEvent('CustomEvent');
					event.initCustomEvent(type, true, true, data);
				}

				return element.dispatchEvent(event);
			}
			/**
			 * Get the offset base on the document.
			 * @param {Element} element - The target element.
			 * @returns {Object} The offset data.
			 */

			function getOffset(element) {
				var box = element.getBoundingClientRect();
				return {
					left: box.left + (window.pageXOffset - document.documentElement.clientLeft),
					top: box.top + (window.pageYOffset - document.documentElement.clientTop)
				};
			}
			/**
			 * Get transforms base on the given object.
			 * @param {Object} obj - The target object.
			 * @returns {string} A string contains transform values.
			 */

			function getTransforms(_ref) {
				var rotate = _ref.rotate,
					scaleX = _ref.scaleX,
					scaleY = _ref.scaleY,
					translateX = _ref.translateX,
					translateY = _ref.translateY;
				var values = [];

				if(isNumber(translateX) && translateX !== 0) {
					values.push("translateX(".concat(translateX, "px)"));
				}

				if(isNumber(translateY) && translateY !== 0) {
					values.push("translateY(".concat(translateY, "px)"));
				} // Rotate should come first before scale to match orientation transform

				if(isNumber(rotate) && rotate !== 0) {
					values.push("rotate(".concat(rotate, "deg)"));
				}

				if(isNumber(scaleX) && scaleX !== 1) {
					values.push("scaleX(".concat(scaleX, ")"));
				}

				if(isNumber(scaleY) && scaleY !== 1) {
					values.push("scaleY(".concat(scaleY, ")"));
				}

				var transform = values.length ? values.join(' ') : 'none';
				return {
					WebkitTransform: transform,
					msTransform: transform,
					transform: transform
				};
			}
			/**
			 * Get an image name from an image url.
			 * @param {string} url - The target url.
			 * @example
			 * // picture.jpg
			 * getImageNameFromURL('http://domain.com/path/to/picture.jpg?size=1280×960')
			 * @returns {string} A string contains the image name.
			 */

			function getImageNameFromURL(url) {
				return isString(url) ? url.replace(/^.*\//, '').replace(/[?&#].*$/, '') : '';
			}
			var IS_SAFARI = WINDOW.navigator && /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i.test(WINDOW.navigator.userAgent);
			/**
			 * Get an image's natural sizes.
			 * @param {string} image - The target image.
			 * @param {Function} callback - The callback function.
			 * @returns {HTMLImageElement} The new image.
			 */

			function getImageNaturalSizes(image, callback) {
				var newImage = document.createElement('img'); // Modern browsers (except Safari)

				if(image.naturalWidth && !IS_SAFARI) {
					callback(image.naturalWidth, image.naturalHeight);
					return newImage;
				}

				var body = document.body || document.documentElement;

				newImage.onload = function() {
					callback(newImage.width, newImage.height);

					if(!IS_SAFARI) {
						body.removeChild(newImage);
					}
				};

				newImage.src = image.src; // iOS Safari will convert the image automatically
				// with its orientation once append it into DOM

				if(!IS_SAFARI) {
					newImage.style.cssText = 'left:0;' + 'max-height:none!important;' + 'max-width:none!important;' + 'min-height:0!important;' + 'min-width:0!important;' + 'opacity:0;' + 'position:absolute;' + 'top:0;' + 'z-index:-1;';
					body.appendChild(newImage);
				}

				return newImage;
			}
			/**
			 * Get the related class name of a responsive type number.
			 * @param {string} type - The responsive type.
			 * @returns {string} The related class name.
			 */

			function getResponsiveClass(type) {
				switch(type) {
					case 2:
						return CLASS_HIDE_XS_DOWN;

					case 3:
						return CLASS_HIDE_SM_DOWN;

					case 4:
						return CLASS_HIDE_MD_DOWN;

					default:
						return '';
				}
			}
			/**
			 * Get the max ratio of a group of pointers.
			 * @param {string} pointers - The target pointers.
			 * @returns {number} The result ratio.
			 */

			function getMaxZoomRatio(pointers) {
				var pointers2 = assign({}, pointers);
				var ratios = [];
				forEach(pointers, function(pointer, pointerId) {
					delete pointers2[pointerId];
					forEach(pointers2, function(pointer2) {
						var x1 = Math.abs(pointer.startX - pointer2.startX);
						var y1 = Math.abs(pointer.startY - pointer2.startY);
						var x2 = Math.abs(pointer.endX - pointer2.endX);
						var y2 = Math.abs(pointer.endY - pointer2.endY);
						var z1 = Math.sqrt(x1 * x1 + y1 * y1);
						var z2 = Math.sqrt(x2 * x2 + y2 * y2);
						var ratio = (z2 - z1) / z1;
						ratios.push(ratio);
					});
				});
				ratios.sort(function(a, b) {
					return Math.abs(a) < Math.abs(b);
				});
				return ratios[0];
			}
			/**
			 * Get a pointer from an event object.
			 * @param {Object} event - The target event object.
			 * @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.
			 * @returns {Object} The result pointer contains start and/or end point coordinates.
			 */

			function getPointer(_ref2, endOnly) {
				var pageX = _ref2.pageX,
					pageY = _ref2.pageY;
				var end = {
					endX: pageX,
					endY: pageY
				};
				return endOnly ? end : assign({
					timeStamp: Date.now(),
					startX: pageX,
					startY: pageY
				}, end);
			}
			/**
			 * Get the center point coordinate of a group of pointers.
			 * @param {Object} pointers - The target pointers.
			 * @returns {Object} The center point coordinate.
			 */

			function getPointersCenter(pointers) {
				var pageX = 0;
				var pageY = 0;
				var count = 0;
				forEach(pointers, function(_ref3) {
					var startX = _ref3.startX,
						startY = _ref3.startY;
					pageX += startX;
					pageY += startY;
					count += 1;
				});
				pageX /= count;
				pageY /= count;
				return {
					pageX: pageX,
					pageY: pageY
				};
			}

			var render = {
				render: function render() {
					this.initContainer();
					this.initViewer();
					this.initList();
					this.renderViewer();
				},
				initContainer: function initContainer() {
					this.containerData = {
						width: window.innerWidth,
						height: window.innerHeight
					};
				},
				initViewer: function initViewer() {
					var options = this.options,
						parent = this.parent;
					var viewerData;

					if(options.inline) {
						viewerData = {
							width: Math.max(parent.offsetWidth, options.minWidth),
							height: Math.max(parent.offsetHeight, options.minHeight)
						};
						this.parentData = viewerData;
					}

					if(this.fulled || !viewerData) {
						viewerData = this.containerData;
					}

					this.viewerData = assign({}, viewerData);
				},
				renderViewer: function renderViewer() {
					if(this.options.inline && !this.fulled) {
						setStyle(this.viewer, this.viewerData);
					}
				},
				initList: function initList() {
					var _this = this;

					var element = this.element,
						options = this.options,
						list = this.list;
					var items = [];
					forEach(this.images, function(image, i) {
						var src = image.src;
						var alt = image.alt || getImageNameFromURL(src);
						var url = options.url;

						if(isString(url)) {
							url = image.getAttribute(url);
						} else if(isFunction(url)) {
							url = url.call(_this, image);
						}

						if(src || url) {
							items.push('<li>' + '<img' + " src=\"".concat(src || url, "\"") + ' role="button"' + ' data-viewer-action="view"' + " data-index=\"".concat(i, "\"") + " data-original-url=\"".concat(url || src, "\"") + " alt=\"".concat(alt, "\"") + '>' + '</li>');
						}
					});
					list.innerHTML = items.join('');
					this.items = list.getElementsByTagName('li');
					forEach(this.items, function(item) {
						var image = item.firstElementChild;
						setData(image, 'filled', true);

						if(options.loading) {
							addClass(item, CLASS_LOADING);
						}

						addListener(image, EVENT_LOAD, function(event) {
							if(options.loading) {
								removeClass(item, CLASS_LOADING);
							}

							_this.loadImage(event);
						}, {
							once: true
						});
					});

					if(options.transition) {
						addListener(element, EVENT_VIEWED, function() {
							addClass(list, CLASS_TRANSITION);
						}, {
							once: true
						});
					}
				},
				renderList: function renderList(index) {
					var i = index || this.index;
					var width = this.items[i].offsetWidth || 30;
					var outerWidth = width + 1; // 1 pixel of `margin-left` width
					// Place the active item in the center of the screen

					setStyle(this.list, assign({
						width: outerWidth * this.length
					}, getTransforms({
						translateX: (this.viewerData.width - width) / 2 - outerWidth * i
					})));
				},
				resetList: function resetList() {
					var list = this.list;
					list.innerHTML = '';
					removeClass(list, CLASS_TRANSITION);
					setStyle(list, getTransforms({
						translateX: 0
					}));
				},
				initImage: function initImage(done) {
					var _this2 = this;

					var options = this.options,
						image = this.image,
						viewerData = this.viewerData;
					var footerHeight = this.footer.offsetHeight;
					var viewerWidth = viewerData.width;
					var viewerHeight = Math.max(viewerData.height - footerHeight, footerHeight);
					var oldImageData = this.imageData || {};
					var sizingImage;
					this.imageInitializing = {
						abort: function abort() {
							sizingImage.onload = null;
						}
					};
					sizingImage = getImageNaturalSizes(image, function(naturalWidth, naturalHeight) {
						var aspectRatio = naturalWidth / naturalHeight;
						var width = viewerWidth;
						var height = viewerHeight;
						_this2.imageInitializing = false;

						if(viewerHeight * aspectRatio > viewerWidth) {
							height = viewerWidth / aspectRatio;
						} else {
							width = viewerHeight * aspectRatio;
						}

						width = Math.min(width * 0.9, naturalWidth);
						height = Math.min(height * 0.9, naturalHeight);
						var imageData = {
							naturalWidth: naturalWidth,
							naturalHeight: naturalHeight,
							aspectRatio: aspectRatio,
							ratio: width / naturalWidth,
							width: width,
							height: height,
							left: (viewerWidth - width) / 2,
							top: (viewerHeight - height) / 2
						};
						var initialImageData = assign({}, imageData);

						if(options.rotatable) {
							imageData.rotate = oldImageData.rotate || 0;
							initialImageData.rotate = 0;
						}

						if(options.scalable) {
							imageData.scaleX = oldImageData.scaleX || 1;
							imageData.scaleY = oldImageData.scaleY || 1;
							initialImageData.scaleX = 1;
							initialImageData.scaleY = 1;
						}

						_this2.imageData = imageData;
						_this2.initialImageData = initialImageData;

						if(done) {
							done();
						}
					});
				},
				renderImage: function renderImage(done) {
					var _this3 = this;

					var image = this.image,
						imageData = this.imageData;
					setStyle(image, assign({
						width: imageData.width,
						height: imageData.height,
						// XXX: Not to use translateX/Y to avoid image shaking when zooming
						marginLeft: imageData.left,
						marginTop: imageData.top
					}, getTransforms(imageData)));

					if(done) {
						if((this.viewing || this.zooming) && this.options.transition) {
							var onTransitionEnd = function onTransitionEnd() {
								_this3.imageRendering = false;
								done();
							};

							this.imageRendering = {
								abort: function abort() {
									removeListener(image, EVENT_TRANSITION_END, onTransitionEnd);
								}
							};
							addListener(image, EVENT_TRANSITION_END, onTransitionEnd, {
								once: true
							});
						} else {
							done();
						}
					}
				},
				resetImage: function resetImage() {
					// this.image only defined after viewed
					if(this.viewing || this.viewed) {
						var image = this.image;

						if(this.viewing) {
							this.viewing.abort();
						}

						image.parentNode.removeChild(image);
						this.image = null;
					}
				}
			};

			var events = {
				bind: function bind() {
					var options = this.options,
						viewer = this.viewer,
						canvas = this.canvas;
					var document = this.element.ownerDocument;
					addListener(viewer, EVENT_CLICK, this.onClick = this.click.bind(this));
					addListener(viewer, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {
						passive: false,
						capture: true
					});
					addListener(viewer, EVENT_DRAG_START, this.onDragStart = this.dragstart.bind(this));
					addListener(canvas, EVENT_POINTER_DOWN, this.onPointerDown = this.pointerdown.bind(this));
					addListener(document, EVENT_POINTER_MOVE, this.onPointerMove = this.pointermove.bind(this));
					addListener(document, EVENT_POINTER_UP, this.onPointerUp = this.pointerup.bind(this));
					addListener(document, EVENT_KEY_DOWN, this.onKeyDown = this.keydown.bind(this));
					addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));

					if(options.toggleOnDblclick) {
						addListener(canvas, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
					}
				},
				unbind: function unbind() {
					var options = this.options,
						viewer = this.viewer,
						canvas = this.canvas;
					var document = this.element.ownerDocument;
					removeListener(viewer, EVENT_CLICK, this.onClick);
					removeListener(viewer, EVENT_WHEEL, this.onWheel, {
						passive: false,
						capture: true
					});
					removeListener(viewer, EVENT_DRAG_START, this.onDragStart);
					removeListener(canvas, EVENT_POINTER_DOWN, this.onPointerDown);
					removeListener(document, EVENT_POINTER_MOVE, this.onPointerMove);
					removeListener(document, EVENT_POINTER_UP, this.onPointerUp);
					removeListener(document, EVENT_KEY_DOWN, this.onKeyDown);
					removeListener(window, EVENT_RESIZE, this.onResize);

					if(options.toggleOnDblclick) {
						removeListener(canvas, EVENT_DBLCLICK, this.onDblclick);
					}
				}
			};

			var handlers = {
				click: function click(event) {
					var target = event.target;
					var options = this.options,
						imageData = this.imageData;
					var action = getData(target, DATA_ACTION); // Cancel the emulated click when the native click event was triggered.

					if(IS_TOUCH_DEVICE && event.isTrusted && target === this.canvas) {
						clearTimeout(this.clickCanvasTimeout);
					}

					switch(action) {
						case 'mix':
							if(this.played) {
								this.stop();
							} else if(options.inline) {
								if(this.fulled) {
									this.exit();
								} else {
									this.full();
								}
							} else {
								this.hide();
							}

							break;

						case 'hide':
							this.hide();
							break;

						case 'view':
							this.view(getData(target, 'index'));
							break;

						case 'zoom-in':
							this.zoom(0.1, true);
							break;

						case 'zoom-out':
							this.zoom(-0.1, true);
							break;

						case 'one-to-one':
							this.toggle();
							break;

						case 'reset':
							this.reset();
							break;

						case 'prev':
							this.prev(options.loop);
							break;

						case 'play':
							this.play(options.fullscreen);
							break;

						case 'next':
							this.next(options.loop);
							break;

						case 'rotate-left':
							this.rotate(-90);
							break;

						case 'rotate-right':
							this.rotate(90);
							break;

						case 'flip-horizontal':
							this.scaleX(-imageData.scaleX || -1);
							break;

						case 'flip-vertical':
							this.scaleY(-imageData.scaleY || -1);
							break;

						default:
							if(this.played) {
								this.stop();
							}

					}
				},
				dblclick: function dblclick(event) {
					event.preventDefault();

					if(this.viewed && event.target === this.image) {
						// Cancel the emulated double click when the native dblclick event was triggered.
						if(IS_TOUCH_DEVICE && event.isTrusted) {
							clearTimeout(this.doubleClickImageTimeout);
						}

						this.toggle();
					}
				},
				load: function load() {
					var _this = this;

					if(this.timeout) {
						clearTimeout(this.timeout);
						this.timeout = false;
					}

					var element = this.element,
						options = this.options,
						image = this.image,
						index = this.index,
						viewerData = this.viewerData;
					removeClass(image, CLASS_INVISIBLE);

					if(options.loading) {
						removeClass(this.canvas, CLASS_LOADING);
					}

					image.style.cssText = 'height:0;' + "margin-left:".concat(viewerData.width / 2, "px;") + "margin-top:".concat(viewerData.height / 2, "px;") + 'max-width:none!important;' + 'position:absolute;' + 'width:0;';
					this.initImage(function() {
						toggleClass(image, CLASS_MOVE, options.movable);
						toggleClass(image, CLASS_TRANSITION, options.transition);

						_this.renderImage(function() {
							_this.viewed = true;
							_this.viewing = false;

							if(isFunction(options.viewed)) {
								addListener(element, EVENT_VIEWED, options.viewed, {
									once: true
								});
							}

							dispatchEvent(element, EVENT_VIEWED, {
								originalImage: _this.images[index],
								index: index,
								image: image
							});
						});
					});
				},
				loadImage: function loadImage(event) {
					var image = event.target;
					var parent = image.parentNode;
					var parentWidth = parent.offsetWidth || 30;
					var parentHeight = parent.offsetHeight || 50;
					var filled = !!getData(image, 'filled');
					getImageNaturalSizes(image, function(naturalWidth, naturalHeight) {
						var aspectRatio = naturalWidth / naturalHeight;
						var width = parentWidth;
						var height = parentHeight;

						if(parentHeight * aspectRatio > parentWidth) {
							if(filled) {
								width = parentHeight * aspectRatio;
							} else {
								height = parentWidth / aspectRatio;
							}
						} else if(filled) {
							height = parentWidth / aspectRatio;
						} else {
							width = parentHeight * aspectRatio;
						}

						setStyle(image, assign({
							width: width,
							height: height
						}, getTransforms({
							translateX: (parentWidth - width) / 2,
							translateY: (parentHeight - height) / 2
						})));
					});
				},
				keydown: function keydown(event) {
					var options = this.options;

					if(!this.fulled || !options.keyboard) {
						return;
					}

					switch(event.keyCode || event.which || event.charCode) {
						// Escape
						case 27:
							if(this.played) {
								this.stop();
							} else if(options.inline) {
								if(this.fulled) {
									this.exit();
								}
							} else {
								this.hide();
							}

							break;
							// Space

						case 32:
							if(this.played) {
								this.stop();
							}

							break;
							// ArrowLeft

						case 37:
							this.prev(options.loop);
							break;
							// ArrowUp

						case 38:
							// Prevent scroll on Firefox
							event.preventDefault(); // Zoom in

							this.zoom(options.zoomRatio, true);
							break;
							// ArrowRight

						case 39:
							this.next(options.loop);
							break;
							// ArrowDown

						case 40:
							// Prevent scroll on Firefox
							event.preventDefault(); // Zoom out

							this.zoom(-options.zoomRatio, true);
							break;
							// Ctrl + 0

						case 48: // Fall through
							// Ctrl + 1
							// eslint-disable-next-line no-fallthrough

						case 49:
							if(event.ctrlKey) {
								event.preventDefault();
								this.toggle();
							}

							break;

						default:
					}
				},
				dragstart: function dragstart(event) {
					if(event.target.tagName.toLowerCase() === 'img') {
						event.preventDefault();
					}
				},
				pointerdown: function pointerdown(event) {
					var options = this.options,
						pointers = this.pointers;
					var buttons = event.buttons,
						button = event.button;

					if(!this.viewed || this.showing || this.viewing || this.hiding // No primary button (Usually the left button)
						// Note that touch events have no `buttons` or `button` property
						||
						isNumber(buttons) && buttons !== 1 || isNumber(button) && button !== 0 // Open context menu
						||
						event.ctrlKey) {
						return;
					} // Prevent default behaviours as page zooming in touch devices.

					event.preventDefault();

					if(event.changedTouches) {
						forEach(event.changedTouches, function(touch) {
							pointers[touch.identifier] = getPointer(touch);
						});
					} else {
						pointers[event.pointerId || 0] = getPointer(event);
					}

					var action = options.movable ? ACTION_MOVE : false;

					if(Object.keys(pointers).length > 1) {
						action = ACTION_ZOOM;
					} else if((event.pointerType === 'touch' || event.type === 'touchstart') && this.isSwitchable()) {
						action = ACTION_SWITCH;
					}

					if(options.transition && (action === ACTION_MOVE || action === ACTION_ZOOM)) {
						removeClass(this.image, CLASS_TRANSITION);
					}

					this.action = action;
				},
				pointermove: function pointermove(event) {
					var pointers = this.pointers,
						action = this.action;

					if(!this.viewed || !action) {
						return;
					}

					event.preventDefault();

					if(event.changedTouches) {
						forEach(event.changedTouches, function(touch) {
							assign(pointers[touch.identifier] || {}, getPointer(touch, true));
						});
					} else {
						assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));
					}

					this.change(event);
				},
				pointerup: function pointerup(event) {
					var _this2 = this;

					var options = this.options,
						action = this.action,
						pointers = this.pointers;
					var pointer;

					if(event.changedTouches) {
						forEach(event.changedTouches, function(touch) {
							pointer = pointers[touch.identifier];
							delete pointers[touch.identifier];
						});
					} else {
						pointer = pointers[event.pointerId || 0];
						delete pointers[event.pointerId || 0];
					}

					if(!action) {
						return;
					}

					event.preventDefault();

					if(options.transition && (action === ACTION_MOVE || action === ACTION_ZOOM)) {
						addClass(this.image, CLASS_TRANSITION);
					}

					this.action = false; // Emulate click and double click in touch devices to support backdrop and image zooming (#210).

					if(IS_TOUCH_DEVICE && action !== ACTION_ZOOM && pointer && Date.now() - pointer.timeStamp < 500) {
						clearTimeout(this.clickCanvasTimeout);
						clearTimeout(this.doubleClickImageTimeout);

						if(options.toggleOnDblclick && this.viewed && event.target === this.image) {
							if(this.imageClicked) {
								this.imageClicked = false; // This timeout will be cleared later when a native dblclick event is triggering

								this.doubleClickImageTimeout = setTimeout(function() {
									dispatchEvent(_this2.image, EVENT_DBLCLICK);
								}, 50);
							} else {
								this.imageClicked = true; // The default timing of a double click in Windows is 500 ms

								this.doubleClickImageTimeout = setTimeout(function() {
									_this2.imageClicked = false;
								}, 500);
							}
						} else {
							this.imageClicked = false;

							if(options.backdrop && options.backdrop !== 'static' && event.target === this.canvas) {
								// This timeout will be cleared later when a native click event is triggering
								this.clickCanvasTimeout = setTimeout(function() {
									dispatchEvent(_this2.canvas, EVENT_CLICK);
								}, 50);
							}
						}
					}
				},
				resize: function resize() {
					var _this3 = this;

					if(!this.isShown || this.hiding) {
						return;
					}

					this.initContainer();
					this.initViewer();
					this.renderViewer();
					this.renderList();

					if(this.viewed) {
						this.initImage(function() {
							_this3.renderImage();
						});
					}

					if(this.played) {
						if(this.options.fullscreen && this.fulled && !(document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
							this.stop();
							return;
						}

						forEach(this.player.getElementsByTagName('img'), function(image) {
							addListener(image, EVENT_LOAD, _this3.loadImage.bind(_this3), {
								once: true
							});
							dispatchEvent(image, EVENT_LOAD);
						});
					}
				},
				wheel: function wheel(event) {
					var _this4 = this;

					if(!this.viewed) {
						return;
					}

					event.preventDefault(); // Limit wheel speed to prevent zoom too fast

					if(this.wheeling) {
						return;
					}

					this.wheeling = true;
					setTimeout(function() {
						_this4.wheeling = false;
					}, 50);
					var ratio = Number(this.options.zoomRatio) || 0.1;
					var delta = 1;

					if(event.deltaY) {
						delta = event.deltaY > 0 ? 1 : -1;
					} else if(event.wheelDelta) {
						delta = -event.wheelDelta / 120;
					} else if(event.detail) {
						delta = event.detail > 0 ? 1 : -1;
					}

					this.zoom(-delta * ratio, true, event);
				}
			};

			var methods = {
				/** Show the viewer (only available in modal mode)
				 * @param {boolean} [immediate=false] - Indicates if show the viewer immediately or not.
				 * @returns {Viewer} this
				 */
				show: function show() {
					var immediate = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
					var element = this.element,
						options = this.options;

					if(options.inline || this.showing || this.isShown || this.showing) {
						return this;
					}

					if(!this.ready) {
						this.build();

						if(this.ready) {
							this.show(immediate);
						}

						return this;
					}

					if(isFunction(options.show)) {
						addListener(element, EVENT_SHOW, options.show, {
							once: true
						});
					}

					if(dispatchEvent(element, EVENT_SHOW) === false || !this.ready) {
						return this;
					}

					if(this.hiding) {
						this.transitioning.abort();
					}

					this.showing = true;
					this.open();
					var viewer = this.viewer;
					removeClass(viewer, CLASS_HIDE);

					if(options.transition && !immediate) {
						var shown = this.shown.bind(this);
						this.transitioning = {
							abort: function abort() {
								removeListener(viewer, EVENT_TRANSITION_END, shown);
								removeClass(viewer, CLASS_IN);
							}
						};
						addClass(viewer, CLASS_TRANSITION); // Force reflow to enable CSS3 transition
						// eslint-disable-next-line

						viewer.offsetWidth;
						addListener(viewer, EVENT_TRANSITION_END, shown, {
							once: true
						});
						addClass(viewer, CLASS_IN);
					} else {
						addClass(viewer, CLASS_IN);
						this.shown();
					}

					return this;
				},

				/**
				 * Hide the viewer (only available in modal mode)
				 * @param {boolean} [immediate=false] - Indicates if hide the viewer immediately or not.
				 * @returns {Viewer} this
				 */
				hide: function hide() {
					var immediate = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
					var element = this.element,
						options = this.options;

					if(options.inline || this.hiding || !(this.isShown || this.showing)) {
						return this;
					}

					if(isFunction(options.hide)) {
						addListener(element, EVENT_HIDE, options.hide, {
							once: true
						});
					}

					if(dispatchEvent(element, EVENT_HIDE) === false) {
						return this;
					}

					if(this.showing) {
						this.transitioning.abort();
					}

					this.hiding = true;

					if(this.played) {
						this.stop();
					} else if(this.viewing) {
						this.viewing.abort();
					}

					var viewer = this.viewer;

					if(options.transition && !immediate) {
						var hidden = this.hidden.bind(this);

						var hide = function hide() {
							addListener(viewer, EVENT_TRANSITION_END, hidden, {
								once: true
							});
							removeClass(viewer, CLASS_IN);
						};

						this.transitioning = {
							abort: function abort() {
								if(this.viewed) {
									removeListener(this.image, EVENT_TRANSITION_END, hide);
								} else {
									removeListener(viewer, EVENT_TRANSITION_END, hidden);
								}
							}
						}; // Note that the `CLASS_TRANSITION` class will be removed on pointer down (#255)

						if(this.viewed && hasClass(this.image, CLASS_TRANSITION)) {
							addListener(this.image, EVENT_TRANSITION_END, hide, {
								once: true
							});
							this.zoomTo(0, false, false, true);
						} else {
							hide();
						}
					} else {
						removeClass(viewer, CLASS_IN);
						this.hidden();
					}

					return this;
				},

				/**
				 * View one of the images with image's index
				 * @param {number} index - The index of the image to view.
				 * @returns {Viewer} this
				 */
				view: function view() {
					var _this = this;

					var index = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.options.initialViewIndex;
					index = Number(index) || 0;

					if(!this.isShown) {
						this.index = index;
						return this.show();
					}

					if(this.hiding || this.played || index < 0 || index >= this.length || this.viewed && index === this.index) {
						return this;
					}

					if(this.viewing) {
						this.viewing.abort();
					}

					var element = this.element,
						options = this.options,
						title = this.title,
						canvas = this.canvas;
					var item = this.items[index];
					var img = item.querySelector('img');
					var url = getData(img, 'originalUrl');
					var alt = img.getAttribute('alt');
					var image = document.createElement('img');
					image.src = url;
					image.alt = alt;

					if(isFunction(options.view)) {
						addListener(element, EVENT_VIEW, options.view, {
							once: true
						});
					}

					if(dispatchEvent(element, EVENT_VIEW, {
							originalImage: this.images[index],
							index: index,
							image: image
						}) === false || !this.isShown || this.hiding || this.played) {
						return this;
					}

					this.image = image;
					removeClass(this.items[this.index], CLASS_ACTIVE);
					addClass(item, CLASS_ACTIVE);
					this.viewed = false;
					this.index = index;
					this.imageData = {};
					addClass(image, CLASS_INVISIBLE);

					if(options.loading) {
						addClass(canvas, CLASS_LOADING);
					}

					canvas.innerHTML = '';
					canvas.appendChild(image); // Center current item

					this.renderList(); // Clear title

					title.innerHTML = ''; // Generate title after viewed

					var onViewed = function onViewed() {
						var imageData = _this.imageData;
						var render = Array.isArray(options.title) ? options.title[1] : options.title;
						title.innerHTML = isFunction(render) ? render.call(_this, image, imageData) : "".concat(alt, " (").concat(imageData.naturalWidth, " \xD7 ").concat(imageData.naturalHeight, ")");
					};

					var onLoad;
					addListener(element, EVENT_VIEWED, onViewed, {
						once: true
					});
					this.viewing = {
						abort: function abort() {
							removeListener(element, EVENT_VIEWED, onViewed);

							if(image.complete) {
								if(this.imageRendering) {
									this.imageRendering.abort();
								} else if(this.imageInitializing) {
									this.imageInitializing.abort();
								}
							} else {
								// Cancel download to save bandwidth.
								image.src = '';
								removeListener(image, EVENT_LOAD, onLoad);

								if(this.timeout) {
									clearTimeout(this.timeout);
								}
							}
						}
					};

					if(image.complete) {
						this.load();
					} else {
						addListener(image, EVENT_LOAD, onLoad = this.load.bind(this), {
							once: true
						});

						if(this.timeout) {
							clearTimeout(this.timeout);
						} // Make the image visible if it fails to load within 1s

						this.timeout = setTimeout(function() {
							removeClass(image, CLASS_INVISIBLE);
							_this.timeout = false;
						}, 1000);
					}

					return this;
				},

				/**
				 * View the previous image
				 * @param {boolean} [loop=false] - Indicate if view the last one
				 * when it is the first one at present.
				 * @returns {Viewer} this
				 */
				prev: function prev() {
					var loop = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
					var index = this.index - 1;

					if(index < 0) {
						index = loop ? this.length - 1 : 0;
					}

					this.view(index);
					return this;
				},

				/**
				 * View the next image
				 * @param {boolean} [loop=false] - Indicate if view the first one
				 * when it is the last one at present.
				 * @returns {Viewer} this
				 */
				next: function next() {
					var loop = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
					var maxIndex = this.length - 1;
					var index = this.index + 1;

					if(index > maxIndex) {
						index = loop ? 0 : maxIndex;
					}

					this.view(index);
					return this;
				},

				/**
				 * Move the image with relative offsets.
				 * @param {number} offsetX - The relative offset distance on the x-axis.
				 * @param {number} offsetY - The relative offset distance on the y-axis.
				 * @returns {Viewer} this
				 */
				move: function move(offsetX, offsetY) {
					var imageData = this.imageData;
					this.moveTo(isUndefined(offsetX) ? offsetX : imageData.left + Number(offsetX), isUndefined(offsetY) ? offsetY : imageData.top + Number(offsetY));
					return this;
				},

				/**
				 * Move the image to an absolute point.
				 * @param {number} x - The x-axis coordinate.
				 * @param {number} [y=x] - The y-axis coordinate.
				 * @returns {Viewer} this
				 */
				moveTo: function moveTo(x) {
					var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
					var imageData = this.imageData;
					x = Number(x);
					y = Number(y);

					if(this.viewed && !this.played && this.options.movable) {
						var changed = false;

						if(isNumber(x)) {
							imageData.left = x;
							changed = true;
						}

						if(isNumber(y)) {
							imageData.top = y;
							changed = true;
						}

						if(changed) {
							this.renderImage();
						}
					}

					return this;
				},

				/**
				 * Zoom the image with a relative ratio.
				 * @param {number} ratio - The target ratio.
				 * @param {boolean} [hasTooltip=false] - Indicates if it has a tooltip or not.
				 * @param {Event} [_originalEvent=null] - The original event if any.
				 * @returns {Viewer} this
				 */
				zoom: function zoom(ratio) {
					var hasTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

					var _originalEvent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;

					var imageData = this.imageData;
					ratio = Number(ratio);

					if(ratio < 0) {
						ratio = 1 / (1 - ratio);
					} else {
						ratio = 1 + ratio;
					}

					this.zoomTo(imageData.width * ratio / imageData.naturalWidth, hasTooltip, _originalEvent);
					return this;
				},

				/**
				 * Zoom the image to an absolute ratio.
				 * @param {number} ratio - The target ratio.
				 * @param {boolean} [hasTooltip=false] - Indicates if it has a tooltip or not.
				 * @param {Event} [_originalEvent=null] - The original event if any.
				 * @param {Event} [_zoomable=false] - Indicates if the current zoom is available or not.
				 * @returns {Viewer} this
				 */
				zoomTo: function zoomTo(ratio) {
					var _this2 = this;

					var hasTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

					var _originalEvent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;

					var _zoomable = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

					var element = this.element,
						options = this.options,
						pointers = this.pointers,
						imageData = this.imageData;
					var width = imageData.width,
						height = imageData.height,
						left = imageData.left,
						top = imageData.top,
						naturalWidth = imageData.naturalWidth,
						naturalHeight = imageData.naturalHeight;
					ratio = Math.max(0, ratio);

					if(isNumber(ratio) && this.viewed && !this.played && (_zoomable || options.zoomable)) {
						if(!_zoomable) {
							var minZoomRatio = Math.max(0.01, options.minZoomRatio);
							var maxZoomRatio = Math.min(100, options.maxZoomRatio);
							ratio = Math.min(Math.max(ratio, minZoomRatio), maxZoomRatio);
						}

						if(_originalEvent && ratio > 0.95 && ratio < 1.05) {
							ratio = 1;
						}

						var newWidth = naturalWidth * ratio;
						var newHeight = naturalHeight * ratio;
						var offsetWidth = newWidth - width;
						var offsetHeight = newHeight - height;
						var oldRatio = width / naturalWidth;

						if(isFunction(options.zoom)) {
							addListener(element, EVENT_ZOOM, options.zoom, {
								once: true
							});
						}

						if(dispatchEvent(element, EVENT_ZOOM, {
								ratio: ratio,
								oldRatio: oldRatio,
								originalEvent: _originalEvent
							}) === false) {
							return this;
						}

						this.zooming = true;

						if(_originalEvent) {
							var offset = getOffset(this.viewer);
							var center = pointers && Object.keys(pointers).length ? getPointersCenter(pointers) : {
								pageX: _originalEvent.pageX,
								pageY: _originalEvent.pageY
							}; // Zoom from the triggering point of the event

							imageData.left -= offsetWidth * ((center.pageX - offset.left - left) / width);
							imageData.top -= offsetHeight * ((center.pageY - offset.top - top) / height);
						} else {
							// Zoom from the center of the image
							imageData.left -= offsetWidth / 2;
							imageData.top -= offsetHeight / 2;
						}

						imageData.width = newWidth;
						imageData.height = newHeight;
						imageData.ratio = ratio;
						this.renderImage(function() {
							_this2.zooming = false;

							if(isFunction(options.zoomed)) {
								addListener(element, EVENT_ZOOMED, options.zoomed, {
									once: true
								});
							}

							dispatchEvent(element, EVENT_ZOOMED, {
								ratio: ratio,
								oldRatio: oldRatio,
								originalEvent: _originalEvent
							});
						});

						if(hasTooltip) {
							this.tooltip();
						}
					}

					return this;
				},

				/**
				 * Rotate the image with a relative degree.
				 * @param {number} degree - The rotate degree.
				 * @returns {Viewer} this
				 */
				rotate: function rotate(degree) {
					this.rotateTo((this.imageData.rotate || 0) + Number(degree));
					return this;
				},

				/**
				 * Rotate the image to an absolute degree.
				 * @param {number} degree - The rotate degree.
				 * @returns {Viewer} this
				 */
				rotateTo: function rotateTo(degree) {
					var imageData = this.imageData;
					degree = Number(degree);

					if(isNumber(degree) && this.viewed && !this.played && this.options.rotatable) {
						imageData.rotate = degree;
						this.renderImage();
					}

					return this;
				},

				/**
				 * Scale the image on the x-axis.
				 * @param {number} scaleX - The scale ratio on the x-axis.
				 * @returns {Viewer} this
				 */
				scaleX: function scaleX(_scaleX) {
					this.scale(_scaleX, this.imageData.scaleY);
					return this;
				},

				/**
				 * Scale the image on the y-axis.
				 * @param {number} scaleY - The scale ratio on the y-axis.
				 * @returns {Viewer} this
				 */
				scaleY: function scaleY(_scaleY) {
					this.scale(this.imageData.scaleX, _scaleY);
					return this;
				},

				/**
				 * Scale the image.
				 * @param {number} scaleX - The scale ratio on the x-axis.
				 * @param {number} [scaleY=scaleX] - The scale ratio on the y-axis.
				 * @returns {Viewer} this
				 */
				scale: function scale(scaleX) {
					var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;
					var imageData = this.imageData;
					scaleX = Number(scaleX);
					scaleY = Number(scaleY);

					if(this.viewed && !this.played && this.options.scalable) {
						var changed = false;

						if(isNumber(scaleX)) {
							imageData.scaleX = scaleX;
							changed = true;
						}

						if(isNumber(scaleY)) {
							imageData.scaleY = scaleY;
							changed = true;
						}

						if(changed) {
							this.renderImage();
						}
					}

					return this;
				},

				/**
				 * Play the images
				 * @param {boolean} [fullscreen=false] - Indicate if request fullscreen or not.
				 * @returns {Viewer} this
				 */
				play: function play() {
					var _this3 = this;

					var fullscreen = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

					if(!this.isShown || this.played) {
						return this;
					}

					var options = this.options,
						player = this.player;
					var onLoad = this.loadImage.bind(this);
					var list = [];
					var total = 0;
					var index = 0;
					this.played = true;
					this.onLoadWhenPlay = onLoad;

					if(fullscreen) {
						this.requestFullscreen();
					}

					addClass(player, CLASS_SHOW);
					forEach(this.items, function(item, i) {
						var img = item.querySelector('img');
						var image = document.createElement('img');
						image.src = getData(img, 'originalUrl');
						image.alt = img.getAttribute('alt');
						total += 1;
						addClass(image, CLASS_FADE);
						toggleClass(image, CLASS_TRANSITION, options.transition);

						if(hasClass(item, CLASS_ACTIVE)) {
							addClass(image, CLASS_IN);
							index = i;
						}

						list.push(image);
						addListener(image, EVENT_LOAD, onLoad, {
							once: true
						});
						player.appendChild(image);
					});

					if(isNumber(options.interval) && options.interval > 0) {
						var play = function play() {
							_this3.playing = setTimeout(function() {
								removeClass(list[index], CLASS_IN);
								index += 1;
								index = index < total ? index : 0;
								addClass(list[index], CLASS_IN);
								play();
							}, options.interval);
						};

						if(total > 1) {
							play();
						}
					}

					return this;
				},
				// Stop play
				stop: function stop() {
					var _this4 = this;

					if(!this.played) {
						return this;
					}

					var player = this.player;
					this.played = false;
					clearTimeout(this.playing);
					forEach(player.getElementsByTagName('img'), function(image) {
						removeListener(image, EVENT_LOAD, _this4.onLoadWhenPlay);
					});
					removeClass(player, CLASS_SHOW);
					player.innerHTML = '';
					this.exitFullscreen();
					return this;
				},
				// Enter modal mode (only available in inline mode)
				full: function full() {
					var _this5 = this;

					var options = this.options,
						viewer = this.viewer,
						image = this.image,
						list = this.list;

					if(!this.isShown || this.played || this.fulled || !options.inline) {
						return this;
					}

					this.fulled = true;
					this.open();
					addClass(this.button, CLASS_FULLSCREEN_EXIT);

					if(options.transition) {
						removeClass(list, CLASS_TRANSITION);

						if(this.viewed) {
							removeClass(image, CLASS_TRANSITION);
						}
					}

					addClass(viewer, CLASS_FIXED);
					viewer.setAttribute('style', '');
					setStyle(viewer, {
						zIndex: options.zIndex
					});
					this.initContainer();
					this.viewerData = assign({}, this.containerData);
					this.renderList();

					if(this.viewed) {
						this.initImage(function() {
							_this5.renderImage(function() {
								if(options.transition) {
									setTimeout(function() {
										addClass(image, CLASS_TRANSITION);
										addClass(list, CLASS_TRANSITION);
									}, 0);
								}
							});
						});
					}

					return this;
				},
				// Exit modal mode (only available in inline mode)
				exit: function exit() {
					var _this6 = this;

					var options = this.options,
						viewer = this.viewer,
						image = this.image,
						list = this.list;

					if(!this.isShown || this.played || !this.fulled || !options.inline) {
						return this;
					}

					this.fulled = false;
					this.close();
					removeClass(this.button, CLASS_FULLSCREEN_EXIT);

					if(options.transition) {
						removeClass(list, CLASS_TRANSITION);

						if(this.viewed) {
							removeClass(image, CLASS_TRANSITION);
						}
					}

					removeClass(viewer, CLASS_FIXED);
					setStyle(viewer, {
						zIndex: options.zIndexInline
					});
					this.viewerData = assign({}, this.parentData);
					this.renderViewer();
					this.renderList();

					if(this.viewed) {
						this.initImage(function() {
							_this6.renderImage(function() {
								if(options.transition) {
									setTimeout(function() {
										addClass(image, CLASS_TRANSITION);
										addClass(list, CLASS_TRANSITION);
									}, 0);
								}
							});
						});
					}

					return this;
				},
				// Show the current ratio of the image with percentage
				tooltip: function tooltip() {
					var _this7 = this;

					var options = this.options,
						tooltipBox = this.tooltipBox,
						imageData = this.imageData;

					if(!this.viewed || this.played || !options.tooltip) {
						return this;
					}

					tooltipBox.textContent = "".concat(Math.round(imageData.ratio * 100), "%");

					if(!this.tooltipping) {
						if(options.transition) {
							if(this.fading) {
								dispatchEvent(tooltipBox, EVENT_TRANSITION_END);
							}

							addClass(tooltipBox, CLASS_SHOW);
							addClass(tooltipBox, CLASS_FADE);
							addClass(tooltipBox, CLASS_TRANSITION); // Force reflow to enable CSS3 transition
							// eslint-disable-next-line

							tooltipBox.offsetWidth;
							addClass(tooltipBox, CLASS_IN);
						} else {
							addClass(tooltipBox, CLASS_SHOW);
						}
					} else {
						clearTimeout(this.tooltipping);
					}

					this.tooltipping = setTimeout(function() {
						if(options.transition) {
							addListener(tooltipBox, EVENT_TRANSITION_END, function() {
								removeClass(tooltipBox, CLASS_SHOW);
								removeClass(tooltipBox, CLASS_FADE);
								removeClass(tooltipBox, CLASS_TRANSITION);
								_this7.fading = false;
							}, {
								once: true
							});
							removeClass(tooltipBox, CLASS_IN);
							_this7.fading = true;
						} else {
							removeClass(tooltipBox, CLASS_SHOW);
						}

						_this7.tooltipping = false;
					}, 1000);
					return this;
				},
				// Toggle the image size between its natural size and initial size
				toggle: function toggle() {
					if(this.imageData.ratio === 1) {
						this.zoomTo(this.initialImageData.ratio, true);
					} else {
						this.zoomTo(1, true);
					}

					return this;
				},
				// Reset the image to its initial state
				reset: function reset() {
					if(this.viewed && !this.played) {
						this.imageData = assign({}, this.initialImageData);
						this.renderImage();
					}

					return this;
				},
				// Update viewer when images changed
				update: function update() {
					var element = this.element,
						options = this.options,
						isImg = this.isImg; // Destroy viewer if the target image was deleted

					if(isImg && !element.parentNode) {
						return this.destroy();
					}

					var images = [];
					forEach(isImg ? [element] : element.querySelectorAll('img[' + options.url + ']'), function(image) {
						if(options.filter) {
							if(options.filter(image)) {
								images.push(image);
							}
						} else {
							images.push(image);
						}
					});

					if(!images.length) {
						return this;
					}

					this.images = images;
					this.length = images.length;

					if(this.ready) {
						var indexes = [];
						forEach(this.items, function(item, i) {
							var img = item.querySelector('img');
							var image = images[i];

							if(image) {
								if(image.src !== img.src) {
									indexes.push(i);
								}
							} else {
								indexes.push(i);
							}
						});
						setStyle(this.list, {
							width: 'auto'
						});
						this.initList();

						if(this.isShown) {
							if(this.length) {
								if(this.viewed) {
									var index = indexes.indexOf(this.index);

									if(index >= 0) {
										this.viewed = false;
										this.view(Math.max(this.index - (index + 1), 0));
									} else {
										addClass(this.items[this.index], CLASS_ACTIVE);
									}
								}
							} else {
								this.image = null;
								this.viewed = false;
								this.index = 0;
								this.imageData = {};
								this.canvas.innerHTML = '';
								this.title.innerHTML = '';
							}
						}
					} else {
						this.build();
					}

					return this;
				},
				// Destroy the viewer
				destroy: function destroy() {
					var element = this.element,
						options = this.options;

					if(!element[NAMESPACE]) {
						return this;
					}

					this.destroyed = true;

					if(this.ready) {
						if(this.played) {
							this.stop();
						}

						if(options.inline) {
							if(this.fulled) {
								this.exit();
							}

							this.unbind();
						} else if(this.isShown) {
							if(this.viewing) {
								if(this.imageRendering) {
									this.imageRendering.abort();
								} else if(this.imageInitializing) {
									this.imageInitializing.abort();
								}
							}

							if(this.hiding) {
								this.transitioning.abort();
							}

							this.hidden();
						} else if(this.showing) {
							this.transitioning.abort();
							this.hidden();
						}

						this.ready = false;
						this.viewer.parentNode.removeChild(this.viewer);
					} else if(options.inline) {
						if(this.delaying) {
							this.delaying.abort();
						} else if(this.initializing) {
							this.initializing.abort();
						}
					}

					if(!options.inline) {
						removeListener(element, EVENT_CLICK, this.onStart);
					}

					element[NAMESPACE] = undefined;
					return this;
				}
			};

			var others = {
				open: function open() {
					var body = this.body;
					addClass(body, CLASS_OPEN);
					body.style.paddingRight = "".concat(this.scrollbarWidth + (parseFloat(this.initialBodyPaddingRight) || 0), "px");
				},
				close: function close() {
					var body = this.body;
					removeClass(body, CLASS_OPEN);
					body.style.paddingRight = this.initialBodyPaddingRight;
				},
				shown: function shown() {
					var element = this.element,
						options = this.options;
					this.fulled = true;
					this.isShown = true;
					this.render();
					this.bind();
					this.showing = false;

					if(isFunction(options.shown)) {
						addListener(element, EVENT_SHOWN, options.shown, {
							once: true
						});
					}

					if(dispatchEvent(element, EVENT_SHOWN) === false) {
						return;
					}

					if(this.ready && this.isShown && !this.hiding) {
						this.view(this.index);
					}
				},
				hidden: function hidden() {
					var element = this.element,
						options = this.options;
					this.fulled = false;
					this.viewed = false;
					this.isShown = false;
					this.close();
					this.unbind();
					addClass(this.viewer, CLASS_HIDE);
					this.resetList();
					this.resetImage();
					this.hiding = false;

					if(!this.destroyed) {
						if(isFunction(options.hidden)) {
							addListener(element, EVENT_HIDDEN, options.hidden, {
								once: true
							});
						}

						dispatchEvent(element, EVENT_HIDDEN);
					}
				},
				requestFullscreen: function requestFullscreen() {
					var document = this.element.ownerDocument;

					if(this.fulled && !(document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
						var documentElement = document.documentElement; // Element.requestFullscreen()

						if(documentElement.requestFullscreen) {
							documentElement.requestFullscreen();
						} else if(documentElement.webkitRequestFullscreen) {
							documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
						} else if(documentElement.mozRequestFullScreen) {
							documentElement.mozRequestFullScreen();
						} else if(documentElement.msRequestFullscreen) {
							documentElement.msRequestFullscreen();
						}
					}
				},
				exitFullscreen: function exitFullscreen() {
					var document = this.element.ownerDocument;

					if(this.fulled && (document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
						// Document.exitFullscreen()
						if(document.exitFullscreen) {
							document.exitFullscreen();
						} else if(document.webkitExitFullscreen) {
							document.webkitExitFullscreen();
						} else if(document.mozCancelFullScreen) {
							document.mozCancelFullScreen();
						} else if(document.msExitFullscreen) {
							document.msExitFullscreen();
						}
					}
				},
				change: function change(event) {
					var options = this.options,
						pointers = this.pointers;
					var pointer = pointers[Object.keys(pointers)[0]];
					var offsetX = pointer.endX - pointer.startX;
					var offsetY = pointer.endY - pointer.startY;

					switch(this.action) {
						// Move the current image
						case ACTION_MOVE:
							this.move(offsetX, offsetY);
							break;
							// Zoom the current image

						case ACTION_ZOOM:
							this.zoom(getMaxZoomRatio(pointers), false, event);
							break;

						case ACTION_SWITCH:
							{
								this.action = 'switched';
								var absoluteOffsetX = Math.abs(offsetX);

								if(absoluteOffsetX > 1 && absoluteOffsetX > Math.abs(offsetY)) {
									// Empty `pointers` as `touchend` event will not be fired after swiped in iOS browsers.
									this.pointers = {};

									if(offsetX > 1) {
										this.prev(options.loop);
									} else if(offsetX < -1) {
										this.next(options.loop);
									}
								}

								break;
							}

						default:
					} // Override

					forEach(pointers, function(p) {
						p.startX = p.endX;
						p.startY = p.endY;
					});
				},
				isSwitchable: function isSwitchable() {
					var imageData = this.imageData,
						viewerData = this.viewerData;
					return this.length > 1 && imageData.left >= 0 && imageData.top >= 0 && imageData.width <= viewerData.width && imageData.height <= viewerData.height;
				}
			};

			var AnotherViewer = WINDOW.Viewer;

			var Viewer =
				/*#__PURE__*/
				function() {
					/**
					 * Create a new Viewer.
					 * @param {Element} element - The target element for viewing.
					 * @param {Object} [options={}] - The configuration options.
					 */
					function Viewer(element) {
						var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

						_classCallCheck(this, Viewer);

						if(!element || element.nodeType !== 1) {
							throw new Error('The first argument is required and must be an element.');
						}

						this.element = element;
						this.options = assign({}, DEFAULTS, isPlainObject(options) && options);
						this.action = false;
						this.fading = false;
						this.fulled = false;
						this.hiding = false;
						this.imageClicked = false;
						this.imageData = {};
						this.index = this.options.initialViewIndex;
						this.isImg = false;
						this.isShown = false;
						this.length = 0;
						this.played = false;
						this.playing = false;
						this.pointers = {};
						this.ready = false;
						this.showing = false;
						this.timeout = false;
						this.tooltipping = false;
						this.viewed = false;
						this.viewing = false;
						this.wheeling = false;
						this.zooming = false;
						this.init();
					}

					_createClass(Viewer, [{
						key: "init",
						value: function init() {
							var _this = this;

							var element = this.element,
								options = this.options;

							if(element[NAMESPACE]) {
								return;
							}

							element[NAMESPACE] = this;
							var isImg = element.tagName.toLowerCase() === 'img';
							var images = [];
							forEach(isImg ? [element] : element.querySelectorAll('img[' + options.url + ']'), function(image) {
								if(isFunction(options.filter)) {
									if(options.filter.call(_this, image)) {
										images.push(image);
									}
								} else {
									images.push(image);
								}
							});
							this.isImg = isImg;
							this.length = images.length;
							this.images = images;
							var ownerDocument = element.ownerDocument;
							var body = ownerDocument.body || ownerDocument.documentElement;
							this.body = body;
							this.scrollbarWidth = window.innerWidth - ownerDocument.documentElement.clientWidth;
							this.initialBodyPaddingRight = window.getComputedStyle(body).paddingRight; // Override `transition` option if it is not supported

							if(isUndefined(document.createElement(NAMESPACE).style.transition)) {
								options.transition = false;
							}

							if(options.inline) {
								var count = 0;

								var progress = function progress() {
									count += 1;

									if(count === _this.length) {
										var timeout;
										_this.initializing = false;
										_this.delaying = {
											abort: function abort() {
												clearTimeout(timeout);
											}
										}; // build asynchronously to keep `this.viewer` is accessible in `ready` event handler.

										timeout = setTimeout(function() {
											_this.delaying = false;

											_this.build();
										}, 0);
									}
								};

								this.initializing = {
									abort: function abort() {
										forEach(images, function(image) {
											if(!image.complete) {
												removeListener(image, EVENT_LOAD, progress);
											}
										});
									}
								};
								forEach(images, function(image) {
									if(image.complete) {
										progress();
									} else {
										addListener(image, EVENT_LOAD, progress, {
											once: true
										});
									}
								});
							} else {
								addListener(element, EVENT_CLICK, this.onStart = function(_ref) {
									if(!isNull(_ref.target.getAttribute(options.url))){
										var target = _ref.target;
										if(target.tagName.toLowerCase() === 'img' && (!isFunction(options.filter) || options.filter.call(_this, target))) {
											_this.view(_this.images.indexOf(target));
										}
									}
								});
							}
						}
					}, {
						key: "build",
						value: function build() {
							if(this.ready) {
								return;
							}

							var element = this.element,
								options = this.options;
							var parent = element.parentNode;
							var template = document.createElement('div');
							template.innerHTML = TEMPLATE;
							var viewer = template.querySelector(".".concat(NAMESPACE, "-container"));
							var title = viewer.querySelector(".".concat(NAMESPACE, "-title"));
							var toolbar = viewer.querySelector(".".concat(NAMESPACE, "-toolbar"));
							var navbar = viewer.querySelector(".".concat(NAMESPACE, "-navbar"));
							var button = viewer.querySelector(".".concat(NAMESPACE, "-button"));
							var canvas = viewer.querySelector(".".concat(NAMESPACE, "-canvas"));
							this.parent = parent;
							this.viewer = viewer;
							this.title = title;
							this.toolbar = toolbar;
							this.navbar = navbar;
							this.button = button;
							this.canvas = canvas;
							this.footer = viewer.querySelector(".".concat(NAMESPACE, "-footer"));
							this.tooltipBox = viewer.querySelector(".".concat(NAMESPACE, "-tooltip"));
							this.player = viewer.querySelector(".".concat(NAMESPACE, "-player"));
							this.list = viewer.querySelector(".".concat(NAMESPACE, "-list"));
							addClass(title, !options.title ? CLASS_HIDE : getResponsiveClass(Array.isArray(options.title) ? options.title[0] : options.title));
							addClass(navbar, !options.navbar ? CLASS_HIDE : getResponsiveClass(options.navbar));
							toggleClass(button, CLASS_HIDE, !options.button);

							if(options.backdrop) {
								addClass(viewer, "".concat(NAMESPACE, "-backdrop"));

								if(!options.inline && options.backdrop !== 'static') {
									setData(canvas, DATA_ACTION, 'hide');
								}
							}

							if(isString(options.className) && options.className) {
								// In case there are multiple class names
								options.className.split(REGEXP_SPACES).forEach(function(className) {
									addClass(viewer, className);
								});
							}

							if(options.toolbar) {
								var list = document.createElement('ul');
								var custom = isPlainObject(options.toolbar);
								var zoomButtons = BUTTONS.slice(0, 3);
								var rotateButtons = BUTTONS.slice(7, 9);
								var scaleButtons = BUTTONS.slice(9);

								if(!custom) {
									addClass(toolbar, getResponsiveClass(options.toolbar));
								}

								forEach(custom ? options.toolbar : BUTTONS, function(value, index) {
									var deep = custom && isPlainObject(value);
									var name = custom ? hyphenate(index) : value;
									var show = deep && !isUndefined(value.show) ? value.show : value;

									if(!show || !options.zoomable && zoomButtons.indexOf(name) !== -1 || !options.rotatable && rotateButtons.indexOf(name) !== -1 || !options.scalable && scaleButtons.indexOf(name) !== -1) {
										return;
									}

									var size = deep && !isUndefined(value.size) ? value.size : value;
									var click = deep && !isUndefined(value.click) ? value.click : value;
									var item = document.createElement('li');
									item.setAttribute('role', 'button');
									addClass(item, "".concat(NAMESPACE, "-").concat(name));

									if(!isFunction(click)) {
										setData(item, DATA_ACTION, name);
									}

									if(isNumber(show)) {
										addClass(item, getResponsiveClass(show));
									}

									if(['small', 'large'].indexOf(size) !== -1) {
										addClass(item, "".concat(NAMESPACE, "-").concat(size));
									} else if(name === 'play') {
										addClass(item, "".concat(NAMESPACE, "-large"));
									}

									if(isFunction(click)) {
										addListener(item, EVENT_CLICK, click);
									}

									list.appendChild(item);
								});
								toolbar.appendChild(list);
							} else {
								addClass(toolbar, CLASS_HIDE);
							}

							if(!options.rotatable) {
								var rotates = toolbar.querySelectorAll('li[class*="rotate"]');
								addClass(rotates, CLASS_INVISIBLE);
								forEach(rotates, function(rotate) {
									toolbar.appendChild(rotate);
								});
							}

							if(options.inline) {
								addClass(button, CLASS_FULLSCREEN);
								setStyle(viewer, {
									zIndex: options.zIndexInline
								});

								if(window.getComputedStyle(parent).position === 'static') {
									setStyle(parent, {
										position: 'relative'
									});
								}

								parent.insertBefore(viewer, element.nextSibling);
							} else {
								addClass(button, CLASS_CLOSE);
								addClass(viewer, CLASS_FIXED);
								addClass(viewer, CLASS_FADE);
								addClass(viewer, CLASS_HIDE);
								setStyle(viewer, {
									zIndex: options.zIndex
								});
								var container = options.container;

								if(isString(container)) {
									container = element.ownerDocument.querySelector(container);
								}

								if(!container) {
									container = this.body;
								}

								container.appendChild(viewer);
							}

							if(options.inline) {
								this.render();
								this.bind();
								this.isShown = true;
							}

							this.ready = true;

							if(isFunction(options.ready)) {
								addListener(element, EVENT_READY, options.ready, {
									once: true
								});
							}

							if(dispatchEvent(element, EVENT_READY) === false) {
								this.ready = false;
								return;
							}

							if(this.ready && options.inline) {
								this.view(this.index);
							}
						}
						/**
						 * Get the no conflict viewer class.
						 * @returns {Viewer} The viewer class.
						 */

					}], [{
						key: "noConflict",
						value: function noConflict() {
							window.Viewer = AnotherViewer;
							return Viewer;
						}
						/**
						 * Change the default options.
						 * @param {Object} options - The new default options.
						 */

					}, {
						key: "setDefaults",
						value: function setDefaults(options) {
							assign(DEFAULTS, isPlainObject(options) && options);
						}
					}]);

					return Viewer;
				}();

			assign(Viewer.prototype, render, events, handlers, methods, others);

			return Viewer;

		}));
		
	})(jQuery);
	layui.link(basePath + '../../lib/layui/lay/modules/viewer/viewer.css');
	exports('viewer', null);
});